International Workshop on Future Linear Colliders, LCWS2024

Higher-order initial state radiation in e+e- annihilation

10 Jul 2024, 09:50

20m

Koshiba Hall (Science building n.1)

Oral presentation (in person) Higgs, Electro-Weak Higgs, Electroweak

Speaker

Andrej Arbuzov (Joint Institute for Nuclear Research)

Description

Radiative corrections due to initial state radiation in electron-positron
annihilation are calculated within the QED structure function approach. NLO QED parton distribution functions are derived analytically. Results are shown in the next-to-leading logarithmic approximation up to $\mathcal{O}({\alpha }^4{L}^3)$ order, where $L=\ln (s/m_e^2)$ is the large logarithm. Several mistakes in previous calculations are corrected. The results are relevant for future high-precision experiments at $e^{+}{e}^{-}$ colliders.

Presentation materials

arbuzov_LCWS_2024.pdf